The rightness of a thing isn't determined by the amount of courage it takes.

p. 77

Each man in his life honors, and imitates as well as he can, that god to whose choir he belonged, while he is uncorrupted in his first incarnation here; and in the fashion he has thus learned, he bears himself to his beloved as well as to the rest. So, then, each chooses from among the beautiful a love conforming to his kind, and then, as if his chosen were his god, he sets him up and robes him for worship.

He sees himself in his lover as if in a mirror, not knowing whom he sees, And when they are together, he too is released from pain, and when apart, he longs as he himself is longed for; for reflected in his heart is love's image, which is love's answer. But he calls it, and believes it, not love but friendship…

Phaedrus as translated in the novel, p. 104

After some years of muddled thinking on the subject, he suddenly saw quite clearly what it was he had been running away from; why he had refused Sandy's first invitation, an what the trouble had been with Charles. It was also the trouble, he perceived, with nine-tenths or the people here tonight. They were specialists. They had not merely accepted their limitations, as Laurie was ready to accept his, loyal to his humanity if not to his sex, and bringing an extra humility to the hard study of human experience. They had identified themselves with their limitations; they were making a career of them. They had turned from all other reality, and curled up in them snugly, as in a womb.

p. 141

He kept telling me I was queer, and I didn't like it. The word, I mean. Shutting you away, somehow; roping you off with a lot of people you don't feel much in common with, half of whom hate the other half anyway, and just keep together so that they can lean up against each other for support.

p. 164

You mustn't get so upset about what you feel, Spud. No one's a hundred per cent consistent all the time. We might like to be. We can plan our lives along certain lines. But you know, there's no future in screwing down all the pressure valves and smashing in the gauge. You can do it for a bit and then something goes. Sometimes it gets so that the only thing is just to say, 'That's what I'd like to feel twenty-four hours a day; but, the hell with it, this is how I feel now.'

A man is at his youngest when he thinks he is a man, not yet realizing that his actions must show it.

Don't you understand even seedtime and reaping? How can people trust the harvest, unless they see it sown?

Men who hover over their opponents have no cause to evolve a science of wrestling; and Theseus is conventionally shown in combat with hulking of monstrous enemies, living by his wits. The tradition that he emulated the feats of Herakles may well embalm some ancient sneer at the over-compensation of a small assertive man. Napoleon comes to mind.
If one examines the legend in this light, a well-defined personality emerges. It is that of a light-weight; brave and aggressive, physically tough and quick; highly sexed and rather promiscuous; touchily proud, but with a feeling for the underdog; resembling Alexander in his precocious competence, gift of leadership, and romantic sense of destiny.

On her portrayal of Theseus in her books, in her "Author's Note", p. 333

You can make an audience see nearly anything, if you yourself believe in it.

Christianity and Islam have changed irrevocably the moral reflexes of the world. The philosopher Herakleitos said with profound truth that you cannot step twice into the same river. The perpetual stream of human nature is formed into ever-changing shallows, eddies, falls and pools by the land over which it passes. Perhaps the only real value of history lies in considering this endlessly varied play between the essence and the accidents.

In hatred as in love, we grow like the thing we brood upon. What we loathe, we graft into our very soul.

He had come back a man, and faithless like a man. He knew that he had longed for her; that true friends share everything, except the past before they met. If only she would weep, even that, and let him comfort her; but she would not humble herself before a man. if only he would run to her side and cling to her; but his manhood was hard-won, no mortal should make him a child again.

p. 187

Do not believe that others will die, not you.... I have wrestled with Thanatos knee to knee and I know how death is vanquished. Man's immortality is not to live forever; for that wish is born of fear. Each moment free from fear makes a man immortal.

But it is not for the perfect vase or the polished gem to choose their owners.

p. 29

You may keep your ten thousand talents; I am not in want of money, I have taken enough. Why only the half of your kingdom to the Euphrates? You offer me the part in exchange for the whole. Your daughter whom you speak of, I shall marry if I choose, whether given by you or not. Your family is safe; no ransom is required of you; come here yourself and make your suit to me, you shall have them free. If you desire our friendship, you have only to ask.

Alexander's answer to the peace treaty offered by Darius III, p. 38

So now, for mercy and honor shown to my people, my lord is barbarous; a tyrant, because he punished his would-be murderers, the right of their meanest citizen; a mere vaunting soldier, though wherever he went he brought Greece with him, the Greece he honored, of which these liars are the unworthy heirs.

p. 269

It is better to believe in men too rashly, and regret, than believe too meanly. Men could be more than they are, if they would try for it. He has shown them that. How many have tried, because of him? Not only those I have seen; there will be men to come. Those who look in mankind only for their own littleness, and make them believe in that, kill more than he ever will in all his wars.